[請益] 總經模型全微分的問題
手機排版sorry
請問為什麼 Ydt消失了?
http://i.imgur.com/A8Gkdtd.jpg
記得以前抄筆記的時候有抄到
http://i.imgur.com/bDxzhpA.jpg
是因為設定稅率不變嗎?
翻了兩本課本都沒特別提到稅率不變的前提。
稅率變化本身在總經中不重要嗎?
謝謝!
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